Green Bay Tool & Die Co., Inc.

Griffin Industries

Founded in 1983 by Thomas Krouth, Griffin Industries was among the first pattern shops in the United States to use emerging CNC technology to manufacture foundry tooling. In its early days, Griffin Industries specialized in making plastic prototype tooling for plaster foundries, as well as green sand and shell tooling for hydraulic valve body castings. Over the years, in response to our customers_x0092_ needs for machining of the parts we tooled, we added more vertical, as well as horizontal, and CNC lathe capabilities. 


In 2004, a second generation assumed the management of Griffin Industries. Thanks to the previous years of very careful, deliberate planning, this transition has been very successful. Since 2004, Griffin Industries has enjoyed two separate building expansions which quadrupled the size of our original building. We have continued to be very progressive in adding to our CNC, CMM, and RP capabilities. 


In 2009, we expanded and renovated our front office area to include much needed More... offices and conference rooms for our growing engineering staff. We now have the facilities, equipment, staff, and systems in place to continue the growth that has blessed us through the years. We are very grateful to our team members and to our customers, without whom we could not do what we so enjoy doing.

Ace Manufacturing Industries

Libert Machine Corp.

M & M Tool & Mold, Inc.

Renco Machine Co., Inc.

Renco has been in business since 1963, serving companies all over the globe. We are a family business that believes in quality, integrity and honesty. We are committed to these values and base our customer relationships on them. 


Since our inception, Renco machine has been dedicated to the precision machining of custom components and assembly. With over five decades of experience in the machining industry, precision is a way of life. We take pride in the fact that 55% of our workforce have been with us for at least 20 years, they possess the knowledge and expertise your company deserves.


Our extensive list of satisfied customers takes us all over the globe in a variety of industries. We have gained the expertise needed for industry standards and can work with you to manufacture a superior product. Some of the industries we have serviced over the years include: paper, defense, nuclear, wind, marine, automotive, food, agriculture, material handling and foundry replacement parts.


At the end More... of the day we produce high quality work that is fairly priced, with on-time delivery that is unrivaled in the industry.

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Suppliers specializing in Engineering Services located in (Green Bay)

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